Churning apparatus



(ModeL) 2 Sheets-Sheet 1. G. B. DAVIDSON.

Ghurning Apparatus.

No. 234,253. Patented Nov. 9,1880.

INVENTOR:

ATTORNEYS.

(ModeL) 2Sheets--Sheet 2. O. B. DAVIDSON.

Uhurning Apparatus.

No. 234,253. Patented Nov. 9,1880.

WITNESSES ATTORNEYS.

NVENTOR MPUERS. PHOTO LTNOG FHER UNITED STATES PATENT @FFTCEQ CHARLES B. DAVIDSON, OF ST. JOSEPH, MISSOURI.

CHURNING APPARATUS.

4 SPECIFICATION forming part of Letters Patent No. 234,253, dated November 9, 1880.

Application filed August 27, 1880. (Modeh) To all whom it may concern.-

Be it known that I, CHARLES BRUETT DAVIDSON, of St. Joseph, in the countyofBuchanan and State of Missouri, have invented a new and Improved Ghurnin g Apparatus, of which the following is a specification.

Figure 1, Sheet 1, is a front elevation, partly in section, of the improvement. Fig. 2, Sheet 1, is a sectional side elevation. Fig. 3, Sheet 2, is a side elevation. Fig. 4, Sheet 1, is a plan View of the dasher.

Similar letters of reference indicate corre sponding parts.

The object of this invention is to furnish a churning apparatus so constructed as to give avery rapid motion to the dasher by a slow movement of the driving-power.

A represents the body, and B the cover, of a churn. To the cover 13 is attached a vertical frame, O, to receive the operating mechanism.

D is the dasher-shaft, to which are attached two or more cross-bars, E, in such positions that as the said dasher-shaft D is revolved the ends of the said cross-bars E will pass between inwardly-projecting arms F, attached to the upright bars a, placed against the inner surface of the sides of the churn-body A. The lower ends of the bars a are inserted in sockets in the bottom of the churn-body A, and their upper ends are inserted in slotsin the ends of the cross-bar b, which extends across the churn-body A, and has a hole formed through its center, through which the dasher-shaft D passes. The hole through the cross-bar b is made larger than the dasher-shaft D, so that the said cross-bar will not interfere with the revolution of the dasher-shaft. By this construction the revolution of the cross-bars E, in connection with the stationary arms F, will throw the milk into violent agitation, and will bring the butter in avery short time. The lower end of the dasher-shaft D revolves in a socket or step in the center of the bottom of the churn-body A. The upper end of the dashershaft D, or a tenon formed upon the said upper end, fits into a cavity in the lower end of the shaft G,Where it is secured detachably by a pin The shaft G passes or other suitable means.

through a hole in the center of the churncoverB and revolves in hearings in the lower cross-bars of the frame C.

To the upper end of the shaft G is attached a small beveled-gear wheel, H, the'tceth of which mesh into the teeth of a large beveledgear wheel, I, attached to the shaft J. The shaft J revolves in hearings in the upright bars of the frame 0, and to the said shaft is attached a small gear-wheel, K, the teeth of which mesh into the teeth of the large gearwheel L attached to the shaft M. The shaft M revolves in bearings in the upright bars of the frame 0, and to the said shaft is attached the end of a spring, N, which is coiled around the said shaft M, and its other end is attached to the top cross-bar of the frame (3. The large gear-wheel L is loose upon the shaft M, and to it is pivoted a pawl, O, which is held forward by a spring, P, attached to the said wheel L. The pawl O engages with the teeth of a ratchet-wheel, Q, attached to the shaft M, so that the shaft M wiil carry the gear-wheel L with it when turned forward, but may be turn ed back to coil the spring N without revolving the said gear-wheel. One end of the shaft M projects, and is squared to receive a key for winding up the spring N. With this construction the uncoiling of the spring N will give a very rapid motion to the dasher D E, and will bring the butter in a very short time. If desired, the spring N may be replaced by an equivalent weight, the descent of which will give motion to the churn-dasher; or a crank may be attached to the projecting end of the shaft J, and motion given to the dasher by hand, the small gear-wheel K being moved upon the shaft J to throw it out of gear with the gear-wheel Lupon the shaft M, The other end of the shaft J projects, and to it is attached alarge pulley, B, which is made heavy to adapt it to serve as a fly-wheel to give steadiness of motion to the dasher. Around the pulley It passes a band, S, which also passes around a small pulley, T, attached to the projecting end of a shaft, U. The shaft U revolves in bearings in the outer ends of arms or brackets V, attached to the uprights of the frame 0.

To the shaft U is attached a hub, W, to which are attached two or more radial arms or spokes, X.

To the outer ends of the arms or spokes X are attached wings Y, which act upon the air, and thus retard and give steadiness to the movement of the mechanism. The arms or spokes X should be adjustable, so that the wings Y may be adjusted parallel with or at an angle to the shaft U, according as it is desired that the mechanism should have a slower or a faster movement.

To the end of the shaft J is attached a short crank, c, to the crank-pin of which is pivoted the upper end of a connecting-bar, d. The lower end of the bar (I has a number of holes formed through it to receive the bolt 6, to which is pivoted the end of a lever-spring, f, or the handle g, attached to the said end of the 20 spring f. The spring f is made flat andlong,

and its other end is attached to the upper end of a post, it, attached to the floor or platform upon which the churn A stands.

With this construction the churn can be 0perated by working the lever-spring f.

Having thus described my invention, what I claim as new, desire to secure by Letters Patent, is

In a churning apparatus, the combination, with the dasher D E, the shafts G J, and the gear'wheels H I, of the crank 0, connectingbar d, and straight lever-spring f g, substantially as herein shown and described, whereby a rapid motion can be given to the dasher, as set forth.

CHARLES BRUETT DAVIDSON.

Witnesses LUKE H. Moss, JOSEPH CROTEAU. 

